섬유

mechanical properties of visually graded lumber. volume 5 aspen-cottonwood, balsam fir, douglas fir (south),

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 362
the document presents tables that summarize the data obtained on the mechanical properties of aspen-cottonwood, balsam fir, and douglas fir (south) 2-inch dimension lumber sampled in the in-grade testing program conducted in the united states. the tables summarize the data for strength in bending, tension parallel to the grain, and compression parallel to the grain and flexural modulus of elasticity flexural stiffness, moment capacity and tensile load capacity are also presented. summaries are provided for these properties after adjustment to 73 degrees f and moisture contents of 12 percent summaries include both parametric (two- and three-parameter weibull, normal and lognormal) and nonparametric estimates
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